Jacquard for embroidering-machines.



J. J. KNBGHT. JACQUARD FOR BMBROIDERING MACHINES. APPLIGATION FILED Dnc.1e, 1909.

979,964, Patented DeC.27,191 0.

frm jff@ n J. J. KNEGHT. JAGQUARD Pon EMBROIDERING MACHINES.

APPLIOATIONTILED DEG. 16, 1809. Y @795,964i Patented Dec. 27,' 1910.

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s xazzfz @Z605 Zzecz www J. J. KNBGHT. y JAGQUARD FOR EMBROIDERINGMACHINES.

APPLICATION FILED DBO. 16, 1909.

Patented D60. 27, 1910.

7 SHEETS-SHEET 3y jim @en Zo? 2 35, am 15@ 5f 4v W 'auf 605 ZZQC TusNomus PETERS ca., wAsHmaraN. n. c.

J. J. KNBGHT. JACQUARD FOR EMBROIDERING MAGHINBS. APPLICATION FILED DBO.16, 1909.

979,964, Patented Dec. 27,1910.

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TH: Nunn/s PETERS co., wAamHGToN, D. c.

J. J. KNECHL JACQUARD FOR EMBROIDERING MACHINES.

APPLICATION FILED DBG. 16, 1909.

979,964 Patented Deo.27,1910.

7 SHEETS-SHEET 5 THE Naxms Fstzns co.. wAsHmmfoN. n, c.

, J. J. KNEGHT. JAGQUARD FOB. EMBROIDEBING MACHINES.

APPLICATION FILED DEO.16. 1999.

Patented Dec.27, 1910.

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.I. J. KNBGHT.

JAQQUARD FOR EMBRoIDE-RING MACHINES.

APPLIOATIONYFILED DEO.16, 1909.

- Patented Dec. 27: 1910.

7 SHEETS-SHEET 7.

TH: Nantais FErERs ce.. WASHINGTON, n. c.

JOHANN JACOB KNECHT, OF CHEMNITZ, GERMANY.

JACQUARD FOR EMBROIDERING-MACHINES.

Specification of Letters Patent.

Patented Dec. 27, 1910.

Application filed December 16, 1909. Serial No. 533,450.

Toy all whom it may concern.:

Be it known that I, JOHANN JACOB KNEUHT, a citizen of the Confederationof Switzerland, and residing at Chemnitz, Kingdom of Saxony, Germany,have invented certain new and useful Improvements in Jacquards forEmbroidering-l/[achines, of which the following is a speciication.

My invention relates to embroidery ma chines, and a primary object is toprovide improved means by which embroidery frames in such machines aremoved automatically according to the movements controlled by a jacquardcard.

An important feature of my invention as compared with devices of thistype known heretofore is that the needles which can be influenced by thejacquard card are so connected with the hooks that they admit of thehooks moving vertically to the direction of motion of the needleswithout influencing the movement of the latter. In this manner a simplerarrangement and a more precise mode of operation are obtained.

Several illustrative embodiments of my invention are represented by wayof example in the accompanying drawings, wherein:

Figures 1, 2, 3 and 4 show one embodiment in side elevation, horizontalsection, vertical section in the plane A-B in Fig. 1, and verticalsection in the plane C-D in Fig. 1, respectively, and Fig. 4a is an eleration, partly in section, showing gearing which actuates the onescrew-spindle of the embroidery frame; Fig. 5 shows a secondillustrative embodiment in side elevation; Fig. 6 is a like view of athird, and Fig. 7 a like view of a fourth illustrative embodiment; Figs.8 and 9 are side elevation and top plan view, respectively, showing afifth illustrative embodiment; Figs. 10 and 11 are side elevation anddetail view, respectively, showing a sixth illustrative embodiment, andFigs. 12 and 13 are like views showing a seventh illustrativeembodiment.

.Referring to the drawings and firstly to Figs. 1 to 4a, 1 designatesthe main shaft from which all the other parts of the device are driven.On said shaft is secured lever 2 carrying a gudgeon or pin 3. On shaft 4is secured a wheel 5 having radial slots 6. Lever 2 and slotted wheel 5are so proportioned that at each complete revolution of shaft 1 pin 3reciprocates in a slot 6 and rotates wheel 5 one sixth of a revolution.On shaft 4 is secured also spur wheel 7.

Shafts 8, 9, 10 and 11, which are square except at the journals, arejournaled in the side walls 16, 17 of the frame of the machine. Spurwheels 12, 13, 14 and 15 are secured on these shafts which are soarranged thatv wheel 7 secured on shaft 4 meshes with wheel 13, wheel 12with wheel 13, the latter with wheel 14 and this with wheel 15.

To the wall 16 are rigidly secured the two hollow shafts 18, 19 in whichthe worms 20, 21 are movable axially but not revolubly. Worm 2O engagesin the internally threaded sleeve or nut 22 which is revoluble but notdisplaceable axially in wall 17, and worm 21 engages in the internallythreaded sleeve or nut 23 which is likewise revoluble but notdisplaceable axially in wall 17. Eight pinions 24 on shaft 8, eightpinions 25 on shaft 9, .eight pinions 26 on shaft 10 and eight pinions27 on shaft 11 are axially displaceable along but not revoluble on theirrespective shafts. The pinions 24 and 25 can individually mesh with thegear wheels 28 formed as planet-wheel carriers and rotatable on hollowshaft 18, and the pinions 26, 27 can individually mesh with the gearwheels 29 formed as planet-wheel carriers and rotatable on hollow shaft19. To this end, each of the wheels 24, 25, 26, 27 run into a hub 30,31, 32, 33, respectively, in whose grooves pins 34, 35, 36, 37,respectively, of arms or levers 38, 39, 40, 41, respectively'engagewhich are respectively secured to or integral with the vertical shafts42, 43, 44, 45. These vertical shafts are journaled at 46, 47; 48, 49;50, 51; and 52, 53, respectively.

rIhe arrangement and mode of operation of the planet-wheel carriers 28,29 will be readily understood from Fig. 4a which clearly shows theplanet gear arranged around hollow shaft 19. r1`his fixed shaft isintegral with the ring of teeth 100 and carries seven wheels 55 whichare revoluble but not movable axially. These wheels are similar 'inshape to wheel 23 but are not internally screw-threaded in their hubs.In each planet-wheel carrier 29 is journaled parallel to worm 21 ashortaxle 103, to the ends of which are secured pinions 104 and 105.That pinion 104 journaled on the first wheel 29 counting from the righthand of `numbers of teeth.

Fig. 4a meshes with the stationary ring of teeth 100. Pinion 105 on the.same axle meshes with inwardly directed teeth of the adjacent wheel Eachof the wheels is provided with a ring of teeth 106, like ring of teeth160, meshing with the pinion of the right-hand adjacent planet-wheelcarrier 29. The number of inwardly directed teeth of each of thesewheels 55, and also wheel 23, is twice that of those rings of teeth 106integral with them which are of the same diameter and have the samenumber of teeth as the stationary ring of teeth 100. All the wheels 29likewise have equal The planet-wheel gearing arranged around hollowshaft 18 is exactly similar to that around shaft 19.

The gear wheels 28, 29 carrying planetwheels are so dimensioned and byvirtue of their planet-wheels vact in such manner on the wheels 54, 55that when each one of the same rotates alone and in order, the worms 20,21 have imparted to them movements which are in geometric ratio, z'. e.as 1 2 4 :8 16 32 64 128. For example, according as one or more of thewheels 24 become ineshed with the wheels 28, the individual axialmovements of worm 2O caused by the rotation of these wheels are added toor subtracted from one another. According as the wheels 24, 25 arecaused to mesh with or be disconnected from the wheels 28, and accordingas the wheels 26, 27 are caused to mesh with or be disconnected from thewheels 29 every optional axial movement within certain limits can beimparted to worms 2O and 21. The two slides 56, 57 which coact with thepin 58 of the embroidery frame59 are secured to the worms 20, 21.

On shafts 8, 9 andlO, 11 are arranged a series of locking devices. Thepurpose of these is to lock the wheels 28, 29 at the moment when thewheels 24, 25 and 26,27 are disengaged from the same. As clearly shownin Fig. 2, in the illustrative embodiment each locking device consistsof a st-irrup or shackle 60 mounted over the shafts 8, 9 or 10, 11,having a detent 61 and under the influence of two springs 62 which arearranged on the shafts and abut against pins 63. Near the bottom of Fig.2 to the left the wheels 27 are shown meshing with wheels 29, andconsequently the appertaining shackles 60 are positioned so that detents 61 do not engage with the wheels 29, whereas when the wheels 27are moved axially away from wall 16, shackles 60 are pushed by springs62 into engagement with the wheels 29 and prevent the same rotating.

Since the pairs of shaft-s 8, 9 and 10, 11 rotate in opposite directionsit is necessary that, with respect to one of the wheels 28, 29 the twoappertaining wheels 24, 25 or 26, 27

Y are never in mesh simultaneously, namely that as soon as one of thewheels 24, 25

meshes with one of the wheels 28, or one of t-he wheels 26, 27 with o-neof the wheels 29, the other of the wheels 24, 25 or 26, 27 and thedetent of shackle 60 must be disconnected therefrom. If none of thewheels 24, 25 or 26, 27 mesh with the appertaining wheels 28 or 29, thewheel 28 or 29 in question becomes locked in the above described manner.For example, ifrone or more of wheels 24 mesh with wheels 28, shaft 20will rotate counter-clockwise in the illustrative embodiment. Spindle 20then moves to the right in the direction of the arrow in Fig. 3 andimparts its motion to slide 56. Consequently pin 58 is moved upwardly tothe right in the slot in the other slide 57 and embroidery frame 59 ismoved upwardly to I the right. If instead of wheels-24 one or morewheels 25 mesh with wheels 28, spindle 2O and slide 56 are moved in theopposite direction, as explained above.

In Figs. 1 to 4, 64 designates the box for carrying hooks 65. This boxis rigidly connected with the walls 66, 67 having grooves correspondingwith the guides 68, 69 integral with the frame, so that the box can bemoved vertically up and down these guides. On shaft 1 are secured at'twoplaces two cams 70 each coacting with a roller 71 revolubly mounted onthe walls 66 and 67, respectively, of the box 64. Springs 73 connectedalso with the machine frame are attached at 72 to these walls. Anothercam 74 which coacts with roller 75 of lever 76 is secured on shaft 1.This lever is connected by rib 77 with the two standards 78, 79 in whichshaft 80 of cylinder 82 carrying the jacquard cards 81 is journaled.These standards each have two guide rods 80a, 81n and 82a, 83,respectively, guided respectively at 84a, 85aL and 86a, 87a. Rib 77 isconnected with one end of a spring 83 whose other end is secured to themachine frame. In the frame is also secured bolt 84 on which lever 85 ismounted to rock. This lever is connected at 86 with a spring 87 attachedto the frame and extends below into an arm 88 with whose roller 89 cam90 secured on shaft 1 coacts. Arm 85 carries a detent 91 which, as soonas lever 85 is rotated around pivot 84 by cam 90 in the direction ofarrow 93, snaps into ratchet wheel 92 and feeds thelatter and shaft 80one tooth, whereby a new row of holes arrives in front of the needles96. On the wall 16 is also provided a detent 97 which when the cylindermoves back in the direction of are row 98 prevents wheel 92 and thecylinder rotating further. In box 64 are mounted displaceably in support95 the thirty-two hooks 65 connected in such manner with thedisplaceable needles 96 that when one part, e. g. needle 96, is movedhorizontally, the other part, e. g. hook 65, isV driven, whereas thehook can move vertically independently of the needle. To this end,needle 96 is iso formed U-shaped at 96b and clasps a downwardly pointinglinger 65a of hook 65. Each hook has two lugs 94, 99 and two notches 1and 1. In the frame is journaled the axle 2 on which thirty-two riders 3are mounted to rock. On each rider are pivotally suspended two stamps orpushers 4, 5a which occupy such a position relatively to the needlesthat after the displacement of the needles in the one or other directioneither lug 94 is under stamp 5, as shown in Fig. 1, or lug 99 is understamp 4a. To each rider is pivoted at 23a a rod 6a pivotally connectedwith rod 8 guided at 7, 7. These rods 8a have racks 9, each of whichmeshes with a wheel 10 on a vertical shaft 42, 43, 44 or 45. On shaft 1is secured a cam 11a coacting with roller 12 of angle lever 14, 15,fulcrumed at 13. Arm 15L carries a detent strip 16 which in the positionof the parts shown in Fig. 1 enters into t-he notches 17 a of the ridersand stops the same as soon as they have completed the rocking motion inthe direction opposite to that indicated by arrow 22 limited by the stop18. Each rider has a second notch 17b in which strip 16a is placed assoon as the riders have rocked in the opposite direction. The hub ofeach rider has a detent member 20 which enters into one of the notches1, 1b, when the rider rocks in the direction of arrow 22, and stops hook65. In each standard 78, 79 is secured a rod 19a connected with thecross-bar 21. This cross-bar is opposite the hooks 65 and coacts withthe same as soon as cylinder 82 moves in the direction opposite to arrow98.

My apparatus as described above operates` as follows 1/Wien shaft 1 isrotated cam 90 coacts with lever 85 so that tooth 91 coacts with ratchetwheel 92 and feeds the same. Shaft 8O and cylinder 82 are rotated andthe jacquard cards are consequently moved 'forward and a new row ofholes arrives in front of the needles 96. At this moment the standards78, 79 move under the influence of springs 83 in the direction of arrow98 and at the end of this motion cylinder 82 is held in its correctposition by detent 97. Those needles 96 which coincide with holes in thecard enter through the same into the cylinder. Those needles, however,which have no holes opposite them are moved in the direction of arrow 98together with the appertaining hooks 65 into such a position to the leftthat lugs 99 arrive under stamps 4. Now when the cams coact with rollers71 of the box 64 and raise the latter, those riders,under whose stamps 4the lugs 99 are located, are rocked in a direction opposite to arrow 22into the position shown in Fig. 1. This rocking motion is imparted byrods 6, 8 to the corresponding shafts 42, 43, 44, 45, whereby a definiteaxial displacement of worms 20, 21 and of the embroidery frameinfluenced by the latter is occasioned. Consequently, according in eachcase to the row of holes in the jacquard card in front of the needles, adefinite displacement of the embroidery frame is brought about, so thatthe embroidery machine works automatically. As soon as cam 74 coactsagain with roller 7 5 and returns the standards 78, 79 into their formerposition, rod 21 coacts with the displaced hooks and returns them intotheir original position shown in Fig. 1, whereupon the cycle ofoperations is repeated.

The illustrative embodiment according to Fig. 5 only differs from thatdescribed'above in that the rocking motion of the riders is not impartedto the shafts 42 to 45 by racks and pinions, but by wire ropes 6brunning over pulleys 10b. To this end, each rider l3b is connected at 4band 5b with a wire rope 6b running over the pulleys 8, 9b revoluble onthe frame, and also over the pulley 10b secured on the appertainingshaft 45. It will be readily understood that as soon as rider 3 moves tothe left or right this motion is imparted to the appertaining Verticalshaft.

In the illustrative embodiment according to Fig. 6 the planet-wheelcarriers 28 29 of the spindles 20, 21, respectively, are driven directlyby racks 9, 10 respectively. Each rack runs out like rack 10 into aframe-like portion 11 having four shoulders or stops 12, 13, 14, 15. Aguide lever 35, 36 is fulcrumed loosely on spindle 20, 21, respectively,beside each planet-wheel carrier. Each lever 35 has a lug 37 engaging ina slot 38 in rack 9 and each lever 36 has a lug 39 engaging in a slot 40in rack 10. In this manner it is obtained that as soon as frame 9 or 10is raised, the rack is not removed from the appertaining wheel 28 or 29,but rolls a short distance on the same. The slotted disk 5 is secured inthe usual manner on shaft 4, and a pin 3X of lever 2 secured on mainshaft 1C coacts with this slotted disk. On the shaft 4 are arrangeddisks 17 correspondingl in number to the number of frames 11 and riders3, to each of which disks are rigidly connected six pins 16. Frame 11 ispivotally connected at 18 with feeler lever 19 which is influenced bythe rocking rider 3 and has a loop 23 guided by the lixed pin 24. Rider3 is bounded above by a curve 25 with which it coacts with roller 22 onlever 19. For the wheels 28 and 29 are provided stop pins 30, 31,respectively, movable in guides 32, 33, respectively. These stops, whichare for entering into a tooth gap when the wheels are stationary, areraised from the teeth gaps by cams 34 secured on shaft 1.

My mechanism according to Fig. 6 operates as follows :#The rotation ofmain shaft 1 is imparted by lever 2 and pin 3X on the latter to slotteddisk 5 in the same manner as described above with reference to Figs. 1to 4, so 'that disk 5 is rotated intermit tently. Now when rider 3 rocksto the right, lever 19 together with frame 11 and rack 10 descend.Consequently, the uppermost of the pins 16 coacts with shoulder 13 anddisplaces rack 10 to the right, the cor-- responding wheel 29 beingrotated clockwise. lVhen rid-er 3 afterward rocks in the oppositedirection, lever 19c and frame 11 are raised. Shoulder 13 consequentlymoves out of reach of pin 16, whereas shoulder 15 moves into reach ofthe same. When slotted disk 5 now rotates the lowest pin 16 will coactwith stop 15 and displace the frame with its rack in the oppositedirection, wheel 29 being now rotated counterclockwise. Thisillustrative embodiment has the advantage that the planet-wheel carriers28 and 29 are driven directly from the slotted disk, whereby themechanism is materially simplified. Moreover', for each planet-wheelcarrier only one needle, one

ook and one rider are necessary, namely in the present instance onlysixteen needles.

The illustrative embodiment according to Fig. 7 only differs from thatlast described in that the racks 9d and 101 coacting wit-h theplanet-wheel carriers 28d and 29, respectively, are not driven by aslotted disk but by blades 41, 42, 43, 44d which are reciprocated by themain shaft 1d. To this end, on the main shaft is secured cam 45dcoacting with roller 46d of thethree-armed lever 48d fulcrum-ed ot 47.This lever is pivotally connected at 49d to rod 50d and at 51d to rod52. These rods 50, 52d are mounted movably at 53, 54. Rod 501 is rigidlyconnected by the two arms 55d and- 56d with the blades 41d and 42,respectively, and rod 52d by the arms 57 d and 58d with the blades 43*1and 44, respectively. The racks 9d and 10d run out into rods 59d and 60,respectively. Rod 591 has shoulders 61d, 71d and rod 60d has shoulders62, 72d. Rod 59 is pivotally connect-ed at 63d with the feeler lever 64,and rod 60d at 651 with the feeler lever 66. The riders 3d are of thesame shape as in the illustrated embodiment according to Fig. 6, z'. e.they are limited by the curve 25d coacting with roller 22d on lever 66dguided by its loop '24 As the racks 9d and 10d are likewise guided bymeans of slots 36d and 40d at the lugs 37d and 39d of the levers 35d and36, respectively, revolubly loosely on the shafts 20d and 21d,respectively, when the rider rocks to and fro said racks will executethe same vertical movement as in the form according` to Fig. 6. Forexample, in the position of rider 3d shown in Fig. 7, when lever 66dwith rod 60d is in its lowest position, shoulder 62d will be moved awayfrom blade 41d but blade 431 will be able to coact with shoulder 72dwhen the main shaft 1d rotat-es, cam 45 coacts with roller 46d of thethree-armed lever 48d and, owing to the same rocking, motion l isimparted to rods 50, 52 and to the blades rigidly connected with thesame. Now when rider 3d rocks to the left, lever 66d with rod 60d israised, and consequently shoulder 721 moves out of reach of blade 43whereas shoulder 62d is able to coact with blade 41d as soon as thisblade is moved by lever 48d.

In the illustrative embodiment according to Figs. 8 and 9 the motion ofmain shaft 1 is imparted by the riders 3 to the wheels 28 and 29. Tothis end, these wheels have eyes 71, 72 pivotally connected by tie rods67, 68, respectively,with the riders. In this form l make the hooks andthe stamps 4 and 5 of specially strong and good material. Motion isderived by the box 64 by means of cams from the main shaft. The motionis sufficiently strong to move the embroidery frame directly. Owing' tothe box 64 with the hooks 65 moving `directly at right angles to thereciprocating motion of the cylinder 82e and owing to the hooks 65 beingheld by the lifters 16 specially in their position, there is no fear ofan impression being made in the card or paper, which may be emphasizedas a special advantage of my invention. As in the form according toFigs. 1 to 4, after completing each rocking motion the riders 3 maylikewisebe firmly held., which again means lixing the planet-wheelcarriers 28 and 29. These planet-wheel carriers may, however, be Fixeddirectly. To this end, each o-f the hooks 65 is provided with a slot' orlink 73 in which a rod 74 pivotally connected to a three-armed lever 75is movable. This three-armed lever is pivoted on bolt 76 and carries onits two arms pins 77, 78 movable in the slot 79 in rod 80 and in theslot 81 of the rod 83, respectively. Rod 80 is pivotally connected withthe guide rod 84 and rod 83 with the guide rod 85. These guide rods 84and 85 run out into the stop pins 86 and 87. The planet-wheel carriers28, 29 each have two cavities or holes for the pins, e. ,0. wheel 29 hastwo holes 42 and43 for the stop pins 86, 87, but in different verticalplanes, as Fig. 9 shows. lVlien rider 3 is in the position shown in Fig.8 in which wheel 29 has rotated to the right, the stop 86 is in the hole43. But as soon as rider 3 has rocked completely to the left, as shownin dotted lines, stop 86 has come o-ut of hole 43 and stop 87 hasentered into hole 42. To this end, rod 74 has a right-hand shoulder 44and a left-hand shoulder 45. Each rod 74 is located between two blades46, 47 which are mounted displaceably in guides 31, 32 and are movedoppositely by cam 48`on shaft 1. Namely, this cam coacts with roller 49of balancer 50 which is pivoted at 51 and to which the blade rods l 52,53 are pivotally connected. Thus before rider 3 is rocked to the leftblade 46 will abut against stop 44e on rod 74e, lift the latter androtate counter-clockwise the three-armed lever e. Consequently pin 78eslides idly along slot 81e, whereas pin '77@ withdraws rod 8Oe and rodSale having stop 8G@ connected therewith from hole 413e. Rider 3e cannow rock to the left, wheel 299 being' moved counter-clockwise, untilstop 87e arrives over hole 42e. At this moment stop 87e is pressed byspring 54e into hole 42e. Shortly before rider 3e returns into itsright-hand position, owing to cam 18e being rotated blade 47e coactswith stop 45e, whereby rod Tele is lowered and three-armed lever 75ereturned into the position shown in Fig. S. Consequently stop 87e iswithdrawn from hole 42e. Then rider 3e now arrives into the positionshown in full lines in F ig. 8, wheel 29e is likewise returned into itsposition shown in full lines until hole 43e arrives under Stop 86e andthe latter is pressed by spring 55e into hole 48e. Just as rider 3e isconnected by rod 68e with planet-wheel carrier 29e, rider Se isconnected by rod 67e with carrier 28e. This planet-wheel carrier 28e isstopped by the two pins 56e and 57 which are forced alternately into theholes 40e, 41e.

The illustrative embodiment according to Figs. 10 and 11 is acombination of the form according to Fig. 6 with that according to Fig.5. Of the eight planet-wheel carriers 28, 291', the seven iirst of eachare driven by racks 59f, GOf from the slotted disk 5f, z'. e. in themanner as in the form according to Fig. 6. 'On the contrary, the eighthand last planet-wheel carriers are likewise driven from the slotted disk5f, but with the intermediary of spur-wheels 801i, Slf and 12f. Sincewheel 12t on shaft 8f meshes with wheel 13f on shaft 9f, and the latterwheel with wheel llf on shaft lOf, and wheel 11 with wheel 15f on shaft11f, motion is imparted to the eighth planet-wheel carriers QSL' and 29fin exactly similar manner as in the form according to F igs, 1 to la orin that according to Fig. 5. As in the form described above withvreference to Figs. 1 to ta, the motion of the eighth planet-wheelcarrier is intermittent to the right or left or takes place continuouslyin one direct-ion only.

Some relative advantages and disadvantages of these various forms willnow be explained. Namely, the arrangement according to Fig. 6 has theadvantage that cach planet-wheel carrier requires only one needle, onehook and one rider, whereas it has the disadvantage that thedisplacement of the embroidery frame cannot be repeated whenever theslotted disk rotates a sixth part of a revolution in the same direction.In the arrangements according to Figs. 1 to Je and 5, on the contrary,it is possible to repeat the displacement of the embroidery frame asfrequently as desired, each sixth part of a revolution of the slotteddisk being imparted to the embroidery frame if the wheels 24, 25, 26, 27are in mesh with the planet-wheel carriers,` but these forms have thedisadvantage that two riders, two hooks and two needles are requisitefor each of the planet-wheel carriers 28 and for each of theplanet-,wheel carriers 29 in order to rotate the planet-wheel carriersin the two directions. Now by combining the forms according to Figs. 1to 4 and 5 with that according to Fig. 6, the seven first planet-wheelcarriers being driven according to Fig. 6 and the eighth as in Figs. 1to 4land Fig. 5, the above mentioned advantages are united, only onehook, rider and needle being required for driving each of the rst sevenplanet-wheel carriers, and two of the same for driving each of the twoeighth planetwheel carriers. In this manner the advantage is obtainedthat, although the arrangement is not much more complicated than thatshown in Fig. 6, the embroidery frame can be displaced every sixth partof a revolution. Fig. 11 shows mgans by which the rack 59i or 60f can bestopped. These means are arranged and operate as follows Rack 60f has anextension 82f. At Sf on the same is pivoted the double trip 84", Sfhaving pins Sf, 87f. 88% 89f are traverses mounted rigidly on the frameof the machine, into whose holes 90f and 91f, respectively, pins 862S'Zf respectively enter. Fig. 11 shows rack 60t moved to the right bylever 19t in the same manner as in the form according to Fig. 6. Now solong as no motion of rack 60f to the left is required, the same is heldlowered, e'. e. pin'86 remains in hole 90f of the traverse 88f andthereby prevents any other non-intentional movement of rack 60f. If therack 60f is to be moved to the left, when rider 3f rocks to the leftthis rack is lifted by means of rod 19f. Consequently pin 86i iswithdrawn from hole 90", whereupon said rack can move to the left.l/Vhen this motion has ceased pin 87" enters into hole 91 and thus holdsrack 6()f in its left-hand position.

In the illustrative embodiment according to Figs. 12 and 13, theplanet-wheel carriers are substituted by disk cranks connected inseries. Motion is imparted to these cranks by riders 3g which imparttheir rocking motion by rods 4g and racks 5g to pinions 9g. The rotatorymotion of the latter is imparted by means of the ball-joint 10g to rod 11g which imparts it by means of ball-joint 12g to shaft 13g journaled inthe holder 14g and carrying bevel wheel 15g. The motion of this wheel isimparted to bevel wheel 16g whose shaft is rigidly connected withspurwheel 17g journaled in holder 14g. Wheel 17g imparts its motion todisk crank 2925. The bearing 90g for the axle of the latter is rigidlyconnected with holder 14g and runs out into the guide 18g mountednon-displaceably in link 19g. In the same manner as disk crank 29@v ismoved by a rider, disk crank 28g1 journaled in similar manner as theformer is moved by another rider. The bearing for the axle of wheel 28g1runs out into the guide 21g non-'displaceable in link 22g. As Fig. 12shows, disk crank 29g1 is pivotally connected at 25g1 with one end ofrod 23g1 whose other end surrounds the axle 24Lg2 of the disk crank29g2. Disk crank 29g2 is pivotally connected at 25g2 with one end of rod23g2 whose other end surrounds the axle 24;g3 of disk crank 29g3, and soon. The arrangement is such that the distance between axles 24W and 25g2is half that between the correspoi'iding preceding axles 241g1 and 25g1.Each of the bearings for the axles of the disk cranks 29g@ 29g* runs outlike the bearing 90g for the axle of the disk crank 29gl into a guide.In contradistinction to the guide 18g (Fig. 13) these guides are mounteddisplaceably inthe link 19g. Each of the bearings for the axles of thedisk cranks 2,83, 28g?, 28g4 runs out like the bearing for the axle ofthe disk crank 28g1 into a guide. In contradistinction to the guide 21g(F ig. 13) these guides are mounted displaceably in the link 22g. vWhendisk crank 29g1 has rotated half a revolution, owing to this rotator-ymotion the following disk crank is moved by means of rod 23g1, the guideblock of disk crank 29g2 moving in its link 19g. If instead of diskcrank 29g1 disk crank 29g2 be rotated, the rotation of the latter willmove the next disk cranks an amount which is only half as great as themovement brought about by the rotation of disk crank 299, because thedistance between the axles 24g2 and 25g is half that between the axles24551 and 25m. If disk crank 29g? only be rotated, the smallest movementof this crank 29g? is brought. about, because the rotation of this crank29g causes a small rotation of the preceding crank 29@ and this again asmall rotation of disk crank 29g5, and so on, whereby a displacement ofthis crank 29g? is occasioned during its rotation. In the presentinstance, it will be readily understood that the reciprocation of theembroidery frame is limited by the sum of the strokes of the crank pins,and consequently the advantage of the form described above withreference to Fig. 10 is not obtained.

I claim 1. In an embroidering machine,`the combination, with a. mainshaft, a variable transmission gearing driven therefrom, and spindlesdriven by said gearing, of an embroidery frame actuated by saidspindles, means for varying the rat-io of transmission of said gearing,a displaceable and rotatable card cylinder driven intermittently fromsaid main shaft, needles adapted to be moved rectilinearly by a card onsaid cylinder, and hooks operated intermittently by said shaft, coactingwith said needles and adapted to move independently thereofrectilinearly in a direction at right angles to the direction of motionimparted by said needles and coact with said means.

2. In an embroidering machine, the combination, with a main shaft, avariable transmission gearing driven therefrom, and spindles driven bysaid gearing, of an embroidery frame actuated by said spindles, meanscomprising an axle, and riders mounted to rock on said axle, for varyingthe ratio yof transmission of said gearing, a displaceable and rotatablecard cylinder driven intermittently from said main shaft, needlesadapted to be moved by a card on said cylinder, and hooks drivenintermittently by said shaft, coacting with said needles and adapted tomove independently thereof in a direct-ion at right angles to thedirection of motion imparted by said needles and coact with said riders.

3. In an embroidering machine, the combination, with a main shaft, avariable transmission gearing driven therefrom, and spindles driven bysaid gearing, of an embroidery frame actuated by said spindles,meanscomprising an axle, and riders mounted to rock on said axle, eachrider having two pushers pivotally suspended therefrom, for varying theratio of transmission of said gearing, a displaceable and rotatable cardcylinder driven intermittently from said main shaft, needles adapted tobe moved by a card on said cylinder, and hooks each having two lugs anddriven intermittently by said shaft, coacting with said needles andadapted to move independently thereof in a direction at right angles tothe direction of motion imparted by said needles and coact with saidpushers and rock said riders.

4L. In an embroidering machine, the combination, with a` frame, a mainshaft journaled therein, a variable transmission gearing driven by saidshaft, and spindles driven by said gearing, of an embroidery frameactuated by said spindles, means comprising an axle, and riders mountedto rock on said axle, for varying the ratio of transmission of saidgearing, a displaceable and rotatable card cylinder drivenintermittently from said main shaft, needles adapted to be movedhorizontally by a card on said cylinder, a box, carrying hooks, movablevertically in said former frame, means on said shaft for intermittentlymoving said box, said hooks coacting with said`needles and able to movevertically independently thereof and coact with said means.

5. In an embroidering machine, the combination, with a main shaft, avariable transmission gearing driven therefrom, and spindles driven bysaid gearing, of an embroidery frame actuated by said spindles, meanscomprising an axle and riders rocking on said aXle for varying the ratioof transmission of said gearing, each rider having tWo pushers pivotallysuspended therefrom and tWo notches, a displaceable and rotatable cardcylinder driven intermittently from said shaft, needles adapted to bedriven horizontally by a card on said cylinder, notched hooks drivenintermittently by said shaft, coacting With said needles and able tomove vertically independently thereof and coact with said pushers, adetent on each rider for engaging in the notches in said hooks, anddetent means controlled by said shaft for engaging in the notches insaid riders.

G. In an embroidering machine, the combination,with a main shaft, axles,carrying` axially movable pinions, driven therefrom,

axially movable spindles, transmission gearing for driving saidspindles, an embroidery frame movably connected With said spindles, adisplaceable and rotatable card cylinder driven intermittently `by saidmain shaft, and needles adapted to be moved horizontally bya card onsaid cylinder, of hooks adapte-d to be driven horizontally by, and to`move vertically independently of, said needles, and rocking ridersactuated by said hooks When the saine move vertically operativelyconnected With said pinions for bringing the same severally intoengagement With said gearing.

In testimony WhereofI affix my signature in the presence of twoWitnesses.

JOHANN JACOB KNECHT. Vitnesses:

ALFRED BRQNN, ARNO RonDnn.

